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1)  equivalent elastic constants
等效弹性常数
1.
2-D homogenization method was applied to study the effects of the micro-structure(cell shape and size)on the equivalent elastic constants of porous structures so as to simplified the problem.
取具有不同孔洞形状的正方形胞元作为周期性结构的代表胞元,将三维孔隙材料简化为截面上具有规则孔洞的二维结构,来计算不同微孔形状及大小下的等效弹性常数;比较分析了微孔结构对多孔材料等效弹性常数的影响。
2.
To verify the correction of these equivalent elastic constants,linear static analysis of an aluminum sandwich plate under pressure out of panel was performed with NASTRAN program.
推导了三角形夹芯板夹心层的等效弹性常数,为验证所推导的弹性常数的合理性,用NASTRAN有限元计算程序对两种模型进行了静力计算比较,一种是用所推导的弹性常数将夹心等效后,以层合板的形式进行计算的模型,另一种是对整个结构直接采用板单元进行计算的模型。
3.
For the purpose of the structural application of fiber-reinforced plasterboard filled with concrete(composite wall-board)in tall building,one wallboard type was selected and the method of materials mechanics was used to simplify it to orthotropic board and equivalent elastic constants were obtained.
为把混凝土灌芯纤维增强石膏板应用到高层结构中,选定了墙板厚度类型,并采用材料力学的方法把其简化为正交各项异性板,获得其等效弹性常数,引用Hill屈服准则来建立其本构关系。
2)  effective elastic constants
有效弹性常数
1.
A model fordetermining theeffective elastic constantsof stitched lamina is established,in which the effectsof stitching parameterson elastic constantsofstitched lamina areanalyzed by consid- ering the nonuniform distribution and in- plan waviness of fibers induced by stitching.
建立了缝纫单层板的有效弹性常数分析模型。
2.
The effective elastic constants of T700/QY8911 single ply plate of stitched lamina are calculated by the proposed model,and the comparison with unstitched model is also analyzed.
在此模型的基础上分析了T700/QY8911缝合单层板的有效弹性常数,并与未缝合模型进行了比较。
3.
A model of determining effective elastic constants of stitched laminate is established,in which the in-plane waviness of fibers induced by stitching is considered and assumption of sine(cosine) curve of the waviness is done.
建立了缝合单层板弹性常数分析模型,通过考虑缝线穿过纤维时产生的弯曲并假设近似正(余)弦曲线,计算T700/QY8911缝合单层板的有效弹性常数,并将其与未缝合模型比较,总结了各缝合参数(行距、针距、缝线半径)对有效弹性常数的影响,为分析缝合层合板弹性常数提供了依据。
3)  effective elastic constant
有效弹性常数
1.
The finite element model based on multiple scale homogenization theory is built for studying on effective elastic constant of tube sheet.
根据多尺度均匀化理论建立了管板有效弹性常数研究的有限元计算模型 ,在弹性平面状态下 ,计算结果与ASME规范中采用的有效弹性常数进行了比较 ,其相对误差在 0 。
4)  predicting system of equivalent engineering elastic constants
等效工程弹性常数预测系统
5)  equivalent elastic constants
等效弹性参数
1.
Then a homogenization finite element method (Homo FEM) is developed for the 2-D periodic structures and applied to the calculation of the equivalent elastic constants Es and?_(s) of a regular honeycomb structure with various relative densities.
同时,利用蜂窝结构的代表胞元模型,用常规的有限元方法(FEM)模拟计算出相应的等效弹性参数。
2.
A homogenization FEM is derived for the 2-D periodic structures and applied to the calculation of theequivalent elastic constants of a square honeycomb structure with various relative densities.
根据弹性均匀化理论,并结合有限元方法推导出适用于二维周期结构的均匀化有限元格式,计算出不同相对密度下的正方形孔洞材料的等效弹性参数以及等效弹性参数与胞元绕坐标系旋转一角度的函数关系,考察了胞壁固体相的力学性能参数对宏观力学性能的影响。
6)  equivalent elastic coefficient
等效弹性系数
1.
At first,the equivalent elastic coefficients of supporting structure are deduced based on energy theory for mirror under different actuating states.
从能量角度入手对微镜支撑结构在其不同运动状态下所表现出的等效弹性系数进行了推导。
补充资料:弹性刚度常数
分子式:
CAS号:

性质:又称弹性劲度常数。弹性体在单位应力下发生的应变。是弹性体刚度的一种量度。通常用Cij表示,单位为Pa,由于压电体存在二极压电效应,在电学条件不同时,所测得的弹性刚度常数也不相同。在短路条件下测得的弹性刚度常数,称为短路弹性刚度常数,用表示。在开路条件下测得的弹性刚度常数,称为开路弹性刚度常数,用表示。弹性刚度常数共用10个,即、、、、和、、、和。压电陶瓷是弹性体,可用弹性刚度常数进行评价。弹性刚度常数值愈小,弹性体愈容易形变;其值较大,材料比较刚硬。

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